The optical absorption spectra of small silver clusters ( n=5–11) embedded in argon matrices

The optical absorption of small mass selected Ag n clusters ( n=5, 7, 8, 9, 11) embedded in solid Ar has been measured. Strong absorption has been found between 3 and 4.5 eV. The absorption spectra show 1–3 major peaks depending on the cluster size. The width of these peaks is considerably smaller t...

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Bibliographic Details
Published in:Chemical physics letters 1992-07, Vol.195 (5), p.613-617
Main Authors: Harbich, W., Fedrigo, S., Buttet, J.
Format: Article
Language:English
Subjects:
Atomic and molecular clusters
Atomic and molecular physics
Exact sciences and technology
Physics
Studies of special atoms, molecules and their ions
clusters
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Summary:The optical absorption of small mass selected Ag n clusters ( n=5, 7, 8, 9, 11) embedded in solid Ar has been measured. Strong absorption has been found between 3 and 4.5 eV. The absorption spectra show 1–3 major peaks depending on the cluster size. The width of these peaks is considerably smaller than commonly found in gas phase photodepletion experiments. A simple model based on a Drude metal, and neglecting the dielectric constant of the surrounding medium, gives satisfactory agreement with experiment.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(92)85572-R